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Old 09-25-2013, 02:00 AM   #155 (permalink)
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Join Date: Jun 2013
Location: Pretoria, South Africa
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Hi Adam,

Have you considered a 2 IGBT version of your driver? I saw that others also asked about it before. I have a couple of questions about the driver board. What diodes are you using with the gate resistors? How did you make the pads for the IGBTs? Just 3 overlapping pads? Were the PCB house happy with that?

Starting to work through the control board, I have a question about the precharge circuit, how does it work? Are the FET and your contactor switching the positive side of the battery? It looks like it from CAP+ label. But how does the FET, Q8 gets switched on and off? The +15V supply is referenced to the negative of the pack (PE), or did I get it all wrong?


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